Scientific Research Publishing

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53700#.VNBnryzQrzE Author(s)    Ramandeep S. Sidhu 1* , Mark Dougherty 1 , Wesley C. Zech 2 , Beth Guertal 3   Affiliation(s) 1 Department of Biosystems Engineering, Auburn University, Auburn, USA . 2 Department of Civil Engineering, Auburn University, Auburn, USA . 3 Department of Crop, Soils and Environmental Sciences, Auburn University, Auburn, USA . ABSTRACT The main goal of this study was to quantify reduction of runoff responses using selected erosion control covers on 1.2 m × 0.6 m plots under simulated rainfall to determine the most cost-effective temporary cover treatment under similar soils, rainfall and embankment slope conditions. The different erosion control covers tested were polyacrylamide (PAM), wheat straw and PAM (WS + P) with and without seed; and engineered fiber matrix (EFM) with and without seed. The EFM + S and WS + P + S tr...

Read  full  paper  at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53170#.VLcvo8nQrzE Author(s)    Kamran Chapi 1 , Ramesh P. Rudra 1 , Syed I. Ahmed 1* , Alamgir A. Khan 1 , Bahram Gharabaghi 1 , William T. Dickinson 1 , Pradeep K. Goel 2   Affiliation(s) 1 School of Engineering, University of Guelph, Guelph, Canada . 2 Environmental Monitoring and Reporting Branch, Ministry of the Environment, Toronto, Canada . ABSTRACT The identification of runoff generating areas (RGAs) within a watershed is a difficult task because of their temporal and spatial behavior. A watershed was selected to investigate the RGAs to determine the factors affecting spatio-temporally in southern Ontario. The watershed was divided into 8 fields having a Wireless System Network (WSN) and a V-notch weir for flow and soil moisture measurements. The results show that surface runoff is generated by the infiltration excess mechanism in summer an...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51119#.VFbT1WfHRK0 Author(s) Mark A. Thomas 1 , Laurent M. Ahiablame 1,2 , Bernard A. Engel 1 , Indrajeet Chaubey 1,3 Affiliation(s) 1 Department of Agricultural and Biological Engineering, Purdue University, West Lafayette, IN, USA . 2 Department of Agricultural and Biosystems Engineering, South Dakota State University, Brookings, SD, USA . 3 Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, USA . ABSTRACT The goal of the study was to model water quality impacts of growing perennial grasses on marginal soils. The GLEAMS-NAPRA and RUSLE models were used to simulate long-term surface runoff, percolation, e...